So I bought a Duduk and the reed is a bit too open when i play it, anyway. I am following the instructions on this site on how to play the Duduk, but I was wondering is it typical that the Duduk will make NO SOUND with a new reed. I'm pushing Air into this thing for all I'm worth and I can make one sound but once i move my fingers to change keys its gone and I can't blow anymore.

What is going on?

I played the Saxophone before but i don;t remember having to blow this hard to make one sound.